Design: 100% waterproof gold certified leather upper Soft textured rubber upper Zip closure and heel pull loop for easy on and off In-Shoe Comfort: Rebound cushioning provides all-day comfort and energy return BLOOM eco-friendly, algae-based EVA footbed that helps clean polluted water habitats BOGS Max-Wick evaporates sweat to keep feet dry Additional Details: DuraFresh natural bio-technology activates to fight odors